Almost everything you (might) need to know about chainrings.

[Old Ned]

If you think you've seen everything there is about chainwheels and chainrings (not necessarily the same thing!) then have a look here -

http://www.bikecult.com/works/chainwhee ... scope.html

Might take a moment for the photo archive to load but worth it.

 

[El Juli]

Curious link. Thanks for sharing.